Research and Publications

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Greater sage-grouse nesting and brood-rearing microhabitat in Nevada and California— Spatial variation in selection and survival patterns

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This report evaluated the nesting and brood-rearing microhabitat factors that influence selection and survival patterns in the Great Basin using a large dataset of microhabitat characteristics from study areas spanning northern Nevada and a portion of northeastern California from 2009 to 2016. The spatial and temporal coverage of the dataset provided a powerful opportunity to evaluate microhabitat factors important to sage-grouse reproduction, while also considering habitat variation associated with different climatic conditions and areas affected by wildfire. The summary statistics for numerous microhabitat factors, and the strength of their association with sage-grouse habitat selection and survival, are provided in this report to support decisions by land managers, policy-makers, and others with the best-available science in a timely manner.

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Using object-based image analysis to conduct high-resolution conifer extraction at regional spatial scales

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For this mapping process across the entire mapping extent, four sets of products are available, including (1) a shapefile representing accuracy results linked to mapping subunits; (2) binary rasters representing conifer presence or absence at a 1 × 1 m resolution; (3) a 30 × 30 m resolution raster representing percentages of conifer canopy cover within each cell from 0 to 100; and (4) 1 × 1 m resolution canopy cover classification rasters derived from a 50-m-radius moving window analysis. The latter two products can be reclassified in a geographic information system (GIS) into user-specified bins to meet different objectives, which include approximations for phases of encroachment. These products complement, and in some cases improve upon, existing conifer maps in the Western United States, and will help facilitate sage-grouse habitat management and sagebrush ecosystem restoration.

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Assessment of aspen ecosystem vulnerability to climate change for the Uinta-Wasatch-Cache and Ashley National Forests, Utah

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In this report, literature-based information and expert elicitation are used to define (a) components of sensitivity and exposure to climate change and (b) the capacity of these ecosystems to adapt to expected changes. Aspen ecosystems benefit from fire and quickly reproduce. Yet, aspen trees are susceptible to drought and heat that is projected to become more frequent and intense in the future. Some aspen-associated plant and animal species may benefit from the expected changes in disturbance regimes and stand structure, while others may experience population reductions or stress as a result of drought and heat. Overall, vulnerability is defined as moderate because although persistence of aspen ecosystems is likely, a dynamic spatial and temporal response to climate change is expected.

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Climate change and wildfire effects in aridland riparian ecosystems: An examination of current and future conditions

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In this report, we review the ecohydrology of southwestern streams and share results from our study sites along the Middle Rio Grande to describe effects of hydrological changes, wildfire, and invasions on plant communities and riparian-nesting birds. We also examine climate change projections and output from population models to gauge the future of aridland riparian ecosystems in an increasingly arid Southwest.

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Prescribed fire complexity rating system guide

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This guide establishes interagency prescribed fire complexity analysis standards. The analysis provides a focused, subjective assessment by qualified prescribed fire burn bosses that is evaluated and approved by Agency Administrators, and provides insight and improves understanding of the significant risks associated with prescribed fire. The analysis:

  • Provides decision support that highlights the risk to values associated with prescribed fire implementation.
  • Identifies the technical difficulty (complexity) of managing the risk to values.
  • Informs the complexity rating determination of high, moderate, or low for a prescribed fire.
  • Identifies prescribed fire plan elements that may pose special problems or concerns.
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Interagency prescribed fire planning and implementation procedures guide

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The Interagency Prescribed Fire Planning and Implementation Procedures Guide establishes national interagency standards for the planning and implementation of prescribed fire. These standards:

  • Describe what is minimally acceptable for prescribed fire planning and implementation.
  • Provide consistent interagency guidance, common terms and definitions, and standardized procedures.
  • Make clear that firefighter and public safety is the first priority.
  • Ensure that risk management is incorporated into all prescribed fire planning and implementation.
  • Support safe, carefully planned, and cost-efficient prescribed fire operations.
  • Support use of prescribed fire to reduce wildfire risk to communities, municipal watersheds and other values, and to benefit, protect, maintain, sustain, and enhance natural and cultural resources.
  • Support use of prescribed fire to restore natural ecological processes and functions, and to achieve land-management objectives.
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Wildland fire smoke health effects on wildland firefighters and the public

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This work combines a comprehensive literature review with extensive smoke exposure concentration data for wildland firefighters to estimate health risks specific to wildland fire smoke. First, we conducted a literature review to identify smoke components that present the highest health hazard potential, the mechanisms of their toxicity, and reviewed epidemiological studies to identify the current gaps in knowledge about the health impacts of wildland fire smoke exposure for firefighters and the public. Next, we examined wildland firefighter exposures, explored predictors of smoke exposures to determine factors influencing smoke exposure for wildland firefighters and estimated exposure to air pollutants using carbon monoxide (CO) as an indicator pollutant. Lastly, we estimated disease risk in wildland firefighters for exposure to particulate matter from smoke using firefighter specific breathing rates with existing exposure response relationship information for risk of lung cancer, ischemic heart disease and cardiovascular disease from cigarette smoking, which produces particulate matter with a similar size range.

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Recreating forests of the past isn't enough to fix our wildfire problem

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Stephen Pyne is Regents Professor in the School of Life Sciences at Arizona State University. This is an abridged version of a piece that appeared on The Conversation; to read the entire piece, go to theconversation.com

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Factors influencing federal and non-federal collaboration with reducing wildland fire risk

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Conditions such as dense vegetation and drought have resulted in more severe wildland fires in recent years, and some communities are experiencing the devastating effects of these fires. Federal agencies can collaborate with nonfederal stakeholders to reduce the risk of wildland fires. This is a key aspect of the National Cohesive Wildland Fire Management Strategy. The Government Accountability Office recommends that federal agencies work with the Wildland Fire Leadership Council—which provides oversight and leadership for the strategy—to develop measures to assess progress toward achieving the strategy’s goals.

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New technology allows scientists to see the forces behind the flames

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This news story provides some about the history and future of fire behavior research.

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